NS_GET_PARENT     197 fs/nsfs.c      	case NS_GET_PARENT:
NS_GET_PARENT      60 tools/testing/selftests/nsfs/pidns.c 		pns = ioctl(ns, NS_GET_PARENT);
NS_GET_PARENT      72 tools/testing/selftests/nsfs/pidns.c 		if (ioctl(pns, NS_GET_PARENT) >= 0 || errno != EPERM)